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package game
import (
"context"
"log"
"regexp"
"strings"
"github.com/nsfisis/iosdc-japan-2025-albatross/backend/db"
"github.com/nsfisis/iosdc-japan-2025-albatross/backend/taskqueue"
)
type Hub struct {
q *db.Queries
ctx context.Context
taskQueue *taskqueue.Queue
taskWorker *taskqueue.WorkerServer
}
func NewGameHub(q *db.Queries, taskQueue *taskqueue.Queue, taskWorker *taskqueue.WorkerServer) *Hub {
return &Hub{
q: q,
ctx: context.Background(),
taskQueue: taskQueue,
taskWorker: taskWorker,
}
}
func (hub *Hub) Run() {
go func() {
if err := hub.taskWorker.Run(); err != nil {
log.Fatal(err)
}
}()
go hub.processTaskResults()
}
func (hub *Hub) CalcCodeSize(code string) int {
re := regexp.MustCompile(`\s+`)
return len(strings.TrimSuffix(strings.TrimPrefix(strings.TrimPrefix(re.ReplaceAllString(code, ""), "<?php"), "<?"), "?>"))
}
func (hub *Hub) EnqueueTestTasks(ctx context.Context, submissionID, gameID, userID int, code string) error {
rows, err := hub.q.ListTestcasesByGameID(ctx, int32(gameID))
if err != nil {
return err
}
for _, row := range rows {
err := hub.taskQueue.EnqueueTaskRunTestcase(
gameID,
userID,
submissionID,
int(row.TestcaseID),
code,
row.Stdin,
row.Stdout,
)
if err != nil {
return err
}
}
return nil
}
func (hub *Hub) processTaskResults() {
for taskResult := range hub.taskWorker.Results() {
switch taskResult := taskResult.(type) {
case *taskqueue.TaskResultRunTestcase:
// TODO: error handling
_ = hub.processTaskResultRunTestcase(taskResult)
aggregatedStatus, _ := hub.q.AggregateTestcaseResults(hub.ctx, int32(taskResult.TaskPayload.SubmissionID))
if aggregatedStatus == "running" {
continue
}
// TODO: error handling
// TODO: transaction
_ = hub.q.UpdateSubmissionStatus(hub.ctx, db.UpdateSubmissionStatusParams{
SubmissionID: int32(taskResult.TaskPayload.SubmissionID),
Status: aggregatedStatus,
})
_ = hub.q.UpdateGameStateStatus(hub.ctx, db.UpdateGameStateStatusParams{
GameID: int32(taskResult.TaskPayload.GameID),
UserID: int32(taskResult.TaskPayload.UserID),
Status: aggregatedStatus,
})
if aggregatedStatus != "success" {
continue
}
_ = hub.q.SyncGameStateBestScoreSubmission(hub.ctx, db.SyncGameStateBestScoreSubmissionParams{
GameID: int32(taskResult.TaskPayload.GameID),
UserID: int32(taskResult.TaskPayload.UserID),
})
default:
panic("unexpected task result type")
}
}
}
func (hub *Hub) processTaskResultRunTestcase(
taskResult *taskqueue.TaskResultRunTestcase,
) error {
if taskResult.Err != nil {
return taskResult.Err
}
if taskResult.Status != "success" {
if err := hub.q.CreateTestcaseResult(hub.ctx, db.CreateTestcaseResultParams{
SubmissionID: int32(taskResult.TaskPayload.SubmissionID),
TestcaseID: int32(taskResult.TaskPayload.TestcaseID),
Status: taskResult.Status,
Stdout: taskResult.Stdout,
Stderr: taskResult.Stderr,
}); err != nil {
return err
}
return nil
}
var status string
if isTestcaseResultCorrect(taskResult.TaskPayload.Stdout, taskResult.Stdout) {
status = "success"
} else {
status = "wrong_answer"
}
if err := hub.q.CreateTestcaseResult(hub.ctx, db.CreateTestcaseResultParams{
SubmissionID: int32(taskResult.TaskPayload.SubmissionID),
TestcaseID: int32(taskResult.TaskPayload.TestcaseID),
Status: status,
Stdout: taskResult.Stdout,
Stderr: taskResult.Stderr,
}); err != nil {
return err
}
return nil
}
func isTestcaseResultCorrect(expectedStdout, actualStdout string) bool {
expectedStdout = strings.TrimSpace(expectedStdout)
actualStdout = strings.TrimSpace(actualStdout)
return actualStdout == expectedStdout
}
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